The following code, when compiled using optimization (-O1, at least), produces
a segfault after several iterations of the loop. I have reproduced the bug on
two machines running the same OS and version of gcc:
$ gcc -v
Reading specs from /usr/lib/gcc/i386-redhat-linux/3.4.6/specs
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info --enable-shared --enable-threads=posix
--disable-checking --with-system-zlib --enable-__cxa_atexit
--disable-libunwind-exceptions --enable-java-awt=gtk --host=i386-redhat-linux
Thread model: posix
gcc version 3.4.6 20060404 (Red Hat 3.4.6-3)
The code was compiled as:
$ g++ -O1 -o bug bug.cc
And run as:
$ ./bug
Segmentation fault
#include <stdexcept>
int main() {
while (true) {
try {
throw std::runtime_error("foo");
} catch (const std::runtime_error& e) {
}
}
return 0;
}
--
Summary: Segfault after repeated throwing and catching of
runtime_error exception with error string
Product: gcc
Version: 3.4.6
Status: UNCONFIRMED
Severity: critical
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: cdewey at biostat dot wisc dot edu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29432
